... Engine Manufacturer- DLQ9406GYQ lpg tanks for cars Propane design pressure:1.77MpaDesign temperature:50°CFilling coefficient:0.42Corrosion allowance:1mmMain ... and unloading, double valve box, toolbox, relief valve, thermometer, pressure gauges, emergency cut-off valve, BPW axis, JOST teams 12 ... welds 100% X-ray detection, grade II qualified C, D class welds 100%, magnetic powder flaw detection class I ...